pdfcrypt 

pdfcrypt allows you to encrypt a PDF (40 bits and 128 bits), set permissions, add user and owner password. For example you can encrypt a pdf without to allow to print it. The button to print the file will be disabled in Acrobat Reader application.
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ASP/Encrypt 

ASP/Encrypt is a server side COM component that allows web developers to strong encrypting and decrypting of text and files. Supports the latest industry-standard strong encryption and hashing algorithms.
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ABC CHAOS 

What can you do with ABC CHAOS? Easily encrypt files into your personal data archive. You can be confident that the data is safely secured.
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Codelock 

Codelock is a PHP and HTML code Encryptor for protecting your source code from thieves. You can encrypt your PHP scripts before distribution to make it unreadable by humans. Codelock is an easy to use, full-featured software encryption solution.
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1Lock 

Encrypt files for burning on a CD, or for download, or add a serial number to your own setup program. Strong encryption. 1Lock operates in 3 modes: Encrypted CD, single self-extracting setup, and as a front-end for your own setup program.
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1Crypt 

A quick and professional way to add strong encryption to your application. 1Crypt is a function library (DLL) which allows you to easily encrypt files, strings, and buffers using 256-bit Advanced Encryption Standard (Rijndael) encryption.
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